New examples of holomorphic foliations without algebraic leaves
Henryk Żołądek (1998)
Studia Mathematica
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We present a series of polynomial planar vector fields without algebraic invariant curves in .
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Henryk Żołądek (1998)
Studia Mathematica
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We present a series of polynomial planar vector fields without algebraic invariant curves in .
Guan, Ke-Ying, Lei, Jinzhi (2003)
International Journal of Mathematics and Mathematical Sciences
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Serge Randriambololona, Sergei Starchenko (2011)
Fundamenta Mathematicae
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We show that the first order structure whose underlying universe is ℂ and whose basic relations are all algebraic subsets of ℂ² does not have quantifier elimination. Since an algebraic subset of ℂ² is either of dimension ≤ 1 or has a complement of dimension ≤ 1, one can restate the former result as a failure of quantifier elimination for planar complex algebraic curves. We then prove that removing the planarity hypothesis suffices to recover quantifier elimination: the structure with...
Chris Peters (1989-1990)
Séminaire Bourbaki
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Henryk Żołądek (1995)
Studia Mathematica
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We give a new proof of Jouanolou’s theorem about non-existence of algebraic solutions to the system . We also present some generalizations of the results of Darboux and Jouanolou about algebraic Pfaff forms with algebraic solutions.
Werner Lütkebohmert (1981-1982)
Groupe de travail d'analyse ultramétrique
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J. Huisman (2001)
Revista Matemática Complutense
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We show that there is a large class of nonspecial effective divisors of relatively small degree on real algebraic curves having many real components i.e. on M-curves. We apply to 1. complete linear systems on M-curves containing divisors with entirely real support, and 2. morphisms of M-curves into P1.
Wojciech Kucharz (1987)
Mathematische Zeitschrift
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Stepan Yu. Orevkov (2003)
Annales de la Faculté des sciences de Toulouse : Mathématiques
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José Felipe Voloch, Karl-Otto Stöhr (1987)
Journal für die reine und angewandte Mathematik
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